baber/WOPTO huggingface dataset:
Patent GB-248023-A (GB)
Title: Improvements in electrodes for use with vacuum or gas-filled discharge tubes or lamps
IPC: H01J17/06
Filed: 1924-09-29
Abstract: 248,023. Gratze, E. V. Hayes-. Sept. 29,1924. Vacuum tubes. - In high-voltage and high frequency vacuum or gas-filled discharge lamps, the actual electrodes between which the discharge always takes place comprise metallic coatings or deposits only upon small cup-shaped end portions of the inner walls of the tube or upon auxiliary cup-shaped parts within these end portions, the coatings or deposits being contiguous to, and in contact with, the leading-in wires. The electrode coatings may be formed by depositing or spraying sodium, magnesium, barium, beryllium or other alkali or alkaline earth metals on to the walls of the bulb a<1>, Fig. 1, or on to a metal shell pressed against the walls, or on to a cup b, Fig. 3, of glass, quartz, steatite or other insulating material. The leading-in wire a<2> contacts with the electrode coating a<x> and may terminate in a cup b, Fig. 1, of aluminium, copper, iron &c. with an inturned edge b<1> and arranged as in Fig. 1 or inverted relatively to the wire a<2>, or in a cup of glass &c. coated with metal, or in branches extending to and contacting with the coating on the inner walls of the bulb, the branches initially supporting magnesium wire or foil to form the electrode coating on flashing the tube after filling with gas. Any depositable matter given off by the cup b in use is added to the electrode coating. The cup b may be coated externally instead of, or in addition to, internally. The Provisional Specification describes electrodes in the shape of cones, parabolas and prolate spheroids which may be formed by electrodeposition on supports or separate moulds or shaped from thin sheet metal.
Patent GB-499459-A (GB)
Title: Mechanism for indicating the strength of dressings applied to warp yarns and threads
IPC: D06B23/00
Filed: 1938-08-03
Abstract: 499,459. Indicating the strength of dressings applied to warps. SUCKER GES., GEB. Aug. 3, 1938, No. 22968. Convention date, Feb. 8. [Class 142 (iv)] To measure the degree of adhesion between dressed warp threads and thus to determine whether the applied dressing is too heavy or light, the threads a pass from the drying cylinder to a separator b carried by a rod c which is slidable against spring action in a guide e pivoted at d. A pointer f fixed to the rod moves over a scale g to indicate the extent of movement of the separator, which may comprise a roller, or two contacting rotating rollers. The threads may be further subdivided by separators h, h<1>, h2, h<3> before being wound on the beam.
Patent GB-518017-A (GB)
Title: Improvements in or relating to the colour-development of silver halide photographic emulsions
IPC: G03C7/36
Filed: 1938-08-03
Abstract: 518,017. Carbethoxyacetylamino-benzenes and naphthalenes. REINDORP, J. H. Aug.3, 1938, No. 22987. [Class 2 (iii)] [Also in Group XX] Compounds of the general formula where R is methoxy, nitro, halogen or a fusedon benz group are prepared by condensing a compound of the general formula C4H5O-COCH2CO-X, where X is halogen or alkoxy, with a compound of the general formula NH2-C6H4- R1 where R has the meaning indicated above. 1-carbethoxyacetylamino-2-methoxybenzene is prepared by' condensing malonic acid monoethyl ester mono-acid chloride or diethyl malonate with o-anisidine. 1-carbethoxyacetylamino-2-chlorbenzene is similarly prepared using o-chloraniline. The Provisional Specificationrefers to compounds of the general formula where Ri and R2 are hydrogen atoms or alkylgroups such as methyl, ethyl, or propyl, aryl groups such as phenyl, aralkyl groups such as benzyl, heterocyclic groups.such as thiazole, thiazoline, oxazole, oxazoline, selenazole, selenazoline, pyridine, quinoline, indolenine, diazine,. including pyrimidine, thiodiazole, and quinazoline, benzthiazole, naphthathiazole, and anthrathiazole, or groups linked together as a single cyclic grouping, such as pyridine, quinoline, piperidine,pyrazoleand indole and R 3 is an alkyl group such as methyl, ethyl, propyl, or butyl ; an aryl group such as phenyl, or an aralkyl group such as benzyl, prepared by reacting a compound of general formula X-CO-CH2-COOR3, with a compound of formula R1R 2NH.R1 is preferably a hydrogen atom and R2 a substituted or unsubstituted phenyl group; suitable substitutes being halogen atoms or nitro, hydroxy, alkoxy, or amino groups.
Patent GB-1087910-A (GB)
Title: Production of cigarette filter rod
IPC: B01D39/18
Filed: 1964-11-20
Abstract: The Specification describes the same apparatus as that described with reference to Fig. 3 of Specification 1,087,909 but the claims are directed to a process for the manufacture of p  cigarette filter rod made up of a bunch of continuous filaments with a particulate solid (e.g. carbon) distributed throughout the filaments, which comprises advancing a tow of artificial filaments through a chamber of a cross-section diminishing in the direction of movement of the tow, thereby to condense the tow to a cross-sectional area more nearly that of the desired filter rod, introducing the particulate solid with the tow within the chamber in the neighbourhood of its entrance thereto and applying a vacuum to the chamber in the neighbourhood of the exit for the condensed tow.
Patent GB-1389179-A (GB)
Title: Slewing crane
IPC: B66C23/84
Filed: 1973-05-15
Abstract: 1389179 Slewing jib cranes INDUSTRIEELE HANDELSCOMBINATIE HOLLAND NV 15 May 1973 [18 May 1972] 23077/73 Heading B8B A slewing crane comprises a superstructure supported on a base 1 through at least one slewing bearing (shown as pairs of bogies 10), and including a counterweight 4 and bracing member 5 each being supported on the base 1 at diametrically opposite sides of the axis of the bearing, a jib 11 being supported on the base 1 at a location intermediate the counterweight 4 and the bracing member 5. As shown the jib 11 is pivotally supported at points 12 and 13 diametrically opposed with respect to the axis of rotation of the bearing on a line at 90 degrees to the diametrical line between the bracing member 5 and the counterweight 4.
Patent GB-257413-A (GB)
Title: Improvements in and relating to change speed gear mechanism
IPC: F16H3/06
Filed: 1925-09-16
Abstract: 257,413. Riley, P. Sept. 16, 1925. Variable-speed gearing comprises a gear or gears 11, 12 slidably splined upon a double-ended dog clutch sleeve 9, which is in turn splined on a driven shaft 3. A gear-box containing the usual driving and lay shafts 2, 6 is thus short. ened. The shaft 6 is constantly driven from the shaft 2 through a pair 4, 5. The sleeve 9 when moved to the left engages clutch 20, 20<1> for direct driving. When moved to the right it engages clutch 21, 21<1> for fourth speed through train 4, 5, 7, 8. Second and third speeds are effected by sliding the coupled gears 11, 12 to left and right into mesh with fixed gears 13, 14. The constant mesh gears have preferably helical teeth to lessen noise. The shaft 3 mav be the driver.
Patent GB-459551-A (GB)
Title: Improvements in or relating to grinding or abrading machines
IPC: B24B41/00
Filed: 1935-08-16
Abstract: 459,551. Grinding-machines. WERNER AKT.-GES., F., Fritz-Wernerstrasse, Marienfelde, Berlin. Aug. 16, 1935, No. 23112. Convention date, June 17. [Class 60] To prevent vibration of the workpiece in a grinding- machine the headstock 1 and the gear-box or casing 6 through which the workpiece spindle 2 is driven are separately mounted on a displaceable slide 4 or on the machine bed 5, a layer 9 of vibration-damping material being provided beneath the gear - box 6. A shock-absorbing coupling such as a belt 8 is preferably employed for transmitting power from the gear box to the spindle 2. The driving motor may be secured to the upper or rear side of the gear box or it may be separately mounted and coupled by belt gearing to the driving shaft of the gear-box.
Patent GB-807319-A (GB)
Title: Improvements in and relating to foundry moulds
IPC: B22C9/28
Filed: 1956-07-26
Abstract: 807,319. Moulds. GRIFFIN WHEEL CO. July 26, 1956 [Sept. 14, 1955], No. 23136/56. Class 83 (1). A mould comprises a number of preformed permanent segments, e.g. of graphite, and one of said segments, e.g. the cope 2, has an opening 9, 11 which communicates with the mould cavity 4 and has situated therein a porous head 13 through which slidably extends a stem 8 carrying means 7 for closing a gate 6 provided in one of the segments, e.g. the drag 3, in alignment with said opening. The stopper-stem passes through guiding-means comprising a spider 19 and a fibreboard tube 27, and may be clamped' thereto by a clamp 28 to hold the stopper 7 in its raised position during casting. The cope also comprises a number of circumferentially-spaced risers 37, having resin-bonded sand-liners 33. The riser-liners 33 and the porous, resin-bonded, sand-head 13 are baked in situ by an apparatus comprising a carrier 41 supported on a piston 42. The head baking- unit comprises a metallic-plug 47, stem 49 and electric heater 51. The lower ends of the riserbores 31 are closed by heating-plates 52, each having a sprue-plug 54 and co-operating with a plug 53. Molten metal is pressure-cast upwardly through the gate 6 to fill the cavity, the stopper 7 then being moved to close the gate. After solidification, the cope is removed and the casting lifted by a lifting-device connected to the stem 29. Specification 721,065 is referred to.
Patent GB-262055-A (GB)
Title: Improvements in the spring suspensions of motor vehicles
IPC: B62D17/00
Filed: 1926-09-21
Abstract: 262,055. Soc. Anon. des Automobiles Cottin et Desgouttes. Nov. 27, 1925, [Convention date]. Springs, arrangement of.-An independent springing arrangement for driving or steering wheels comprises spindles or slides 7 carrying the stub-axles or other wheel-bearing members, and attached to the ends of a transverse spring 2, the upper end of each spindle or slide being guided in a member 6 universally jointed in an arm 4 fixed to the frame. The arms 4 may be adjustable in length by means of screws 5.
Patent GB-701550-A (GB)
Title: Improvements in carrying out the hydration of acetylenes to aldehydes or ketones
Filed: 1949-02-23
Abstract: <PICT:0701550/IV(b)/1> In the hydration of acetylenes to aldehydes or ketones in the presence of moving solid catalysts and moving inert solid heat carriers, the heat of reaction is withdrawn by cooling the moving solids by direct contact with a cooling agent.  As shown in Fig. 1 the solids move downwardly through reaction chamber 1 and are carried back to the top of the chamber by a bucket conveyer 6 arranged in an atmosphere of carbon dioxide.  Acetylene enters at 2 and the reaction products containing acetaldehyde leave at 4. Water is introduced at 12, 12a, 13, 14 as a cooling agent, and also to take part in the reaction.  Air for regenerating the catalyst may also enter at 12a.  In Fig. II the solids are maintained as a fluidized bed in reactor 31 by means of acetylene entering at 30 and steam at 25.  Water is introduced at 26 or directly into the reactor. Reaction <PICT:0701550/IV(b)/2> products pass through cooler 18 to receptable 20.  The catalyst is continuously or periodically regenerated by passing the solids through pipe 29 to regenerator 36 where they are treated as a fluidized bed with steam and air.  Zinc tungstate may be used as the catalyst, and alumina or silica as the inert solid.  A suitable reaction temperature is 350 DEG -370 DEG C. Methylacetylene may be converted to acetone, and vinyl acetylene to methyl vinyl ketone.  Specifications 568,913 and 626,070 are referred to.ALSO:<PICT:0701550/III/1> In the hydration of acetylenes to aldehydes or ketones in the presence of moving solid catalysts and moving inert solid heat carriers, the heat of reaction is withdrawn by cooling the moving solids by direct contact with a cooling agent. As shown in Fig. I the solids move downwardly through reaction chamber 1 and are carried back to the top of the chamber by a bucket conveyer 6 arranged in an atmosphere of carbon dioxide.  Acetylene enters at 2 and the reaction products containing acetaldehyde leave at 4. Water is introduced at 12, 12a, 13, 14 as a cooling agent, and also to take part in the reaction.  Air for regenerating the catalyst may also enter at 12a.  In Fig. II the solids are maintained as a fluidized bed in reactor 31 by means of acetylene entering at 30 and steam at 25.  Water is introduced at 26 or directly into the reactor. Reaction products pass through cooler 18 to receptacle 20.  The catalyst is continuously or periodically regenerated by passing the solids through pipe 29 to regenerator 36 where they are treated as a fluidized bed with steam and air.  Zinc tungstate may be used as the catalyst, and almuina or silica as the inert solid.  A suitable reaction temperature is <PICT:0701550/III/2> 350 DEG -370 DEG C. Methylacetylene may be converted to actetone, and vinylacetylene to methyl vinyl ketone.  Specifications 568,913 and 626,070 are referred to.
Patent GB-857817-A (GB)
Title: Harness inertia reel
IPC: B60R22/46
Filed: 1959-07-07
Abstract: 857,817. Strap tensioning devices. GABRIEL CO. July 7, 1959 [Dec. 17, 1958], No. 23369/59. Class 45. [Also in Groups VII and XXXIII] A device for rapidly tightening the seat harness of the occupant of an aircraft comprises a strap 12 which is taken up by a reel 36 which is driven in rotation by the axial movement of a driver 160. The reel 36 which is biased by a spring 130 in a direction to wind in the strap, is mounted in a housing 20 and supported in a bearing 32, a needle bearing 48 and thrust bearings 50 and 52. The reel has an internal screw thread 162 and is connected by a number of balls 166 to a driver 160. The driver can slide along a rod 170 of polyhedral cross-section, but cannot rotate and therefore drives the reel in rotation. The driver is impelled by the rod 148 of a piston 144 which has a piston head 146 that is acted on by the pressure of a gas generated in an initiator 186. The housing contains a liquid 180 which is forced through a calibrated orifice 182 as the piston advances, and controls the speed of operation of the device. There is an inertia lock on the reel 36 which operates if the reel is subjected to high acceleration forces. The lock comprises a sleeve 94 secured to the reel, and on which are mounted a pair of pawls 72 and 74. There are springs 76 and 78 which tend to move the pawls into engagement with the teeth 80 of a fixed sleeve 82, which is secured to the housing, but the pawls are prevented from moving by cams 68, and 70 which engage their tail ends. The cams 68 and 70 project from an inertia wheel 62 which has teeth 64 and a smooth bore which fits closely on the reel 36, so that the two normally rotate together. Rapid acceleration of the reel causes the inertia wheel to slip so that the cams move from under the pawls and the reel becomes locked. The reel can be released by the seat occupant by operating a lever 120 which is connected by a cable to a rod 116. A spring 122 presses the rod against the inertia wheel 62 so that the teeth 118 engage the teeth 64. Movement of the lever 120 fully first in one direction and then in the other will cause the cams 68 and 70 to move and engage the tails of the pawls in the recesses 100 and 102 in the cams. The reel 36 can be locked when desired by moving the lever 120 to bring the teeth 118 into engagement with the teeth 64. When the harness is used in conjunction with an ejector seat, the initiator which is fired by breaking a shear-pin can be connected to the ejector mechanism.
Patent GB-814649-A (GB)
Title: Improvements in or relating to fluid pumps
IPC: F04B49/12
Filed: 1955-08-15
Abstract: 814,649. Reciprocating pumps; compressors. OTT, H., and SCHESTAG, R. [trading as LEWA O. H., G. OTT & SCHESTAG]. Aug. 15, 1955 [Sept. 6, 1954], No. 23385/55. Classes 8(1) and 102(1). A pump piston rod is drivingly connected by means of blocks 9 slidable in inner guideways 10 to a beam 8 the other end of which is driven with a constant stroke by means of an eccentric 3 the connection including guide blocks 5 sliding in fixed guides 6. The fulcrum of the beam 8 is adjustable in a plane parallel to or coincident with the plane including the driving connections when the piston is at the end of the pressure stroke by means which include blocks 11 slidable in outer guideways 12, so that they may pass the blocks 9, whereby the axes of the fulcrum blocks 11 and the piston rod blocks 9 may coincide and a stirrup member 13 connected to a cylindrical member 14 adjustable in a cylindrical guide 16 by means of a threaded extension 15 and handle 17. A scale 21 is provided on the extension 15 and the member 14 may be locked by a device 18.
Patent GB-316584-A (GB)
Title: Arrangement for the excitation of synchronous or asynchronous wattless output machines
IPC: H02K17/38
Filed: 1929-07-30
Abstract: 316,584. Siemens - SchuckertweTke Akt.-Ges. July 31, 1928, [Convention date]. Alternating - current induction machines; exciting.-A synchron ous or an asynchronous machine supplying wattless currents is ex cited by a self-excited commutator machine acting in opposition to a potential suppliec from the mains sc that in the event of a fall in the mains potential, the excita tion of the mair machine will be in creased. In Fig. 1 a synchronous main machine 1 has its exciting winding supplied from an exciter 2 in series with a rotary converter 3, the slip rings of which are fed from the mains through a transformer 4. The machine 3 may have a continuous-current compensating stator winding and gives a voltage which is less than and is opposed to the voltage of the exciter 2. In the case of an asynchronous main machine 5, Fig. 2, the rotor is fed from a compensated machine 6, the slip rings 7 of which are fed at mains frequency from an auxiliary asynchronous machine 8. The exciting winding of the machine 8 is supplied at slip frequency from the commutator of the machine 6 through adjustable resistances 9. In order to supply to the rotor winding of the principal machine 5 an exciting potential proportional to the mains potential the secondary of a transformer is inserted in the leads between the slip rings 7, 10, the primary of which is fed from the mains, and the potentials of this transformer and of the machine 8 are oppositely directed.
Patent GB-643705-A (GB)
Title: Device for making of silage
IPC: A01F25/16
Filed: 1948-09-07
Abstract: 643,705. Making silage. BLANCH, A. B. Sept. 7, 1948, No. 23486. [Class 5(i)] Walls, removably set in or on the ground, are spaced so that a tractor and trailer may pass between them. The ends may be spanned by horizontal ties 21 resting in grooves 23 in the uprights of the wallframes, and raisable by winch 24 and cable 25. Ramps 27 pivot on the top ties all of which are of circular cross-section. Struts 15 support the walls against outward thrust. Two or more pairs of walls may be connected end-to-end.
Patent GB-1242664-A (GB)
Title: Manufacture of photographic material
Inventor: KERR WILLIAM CARROLL
IPC: B29C48/08
Filed: 1969-05-08
Abstract: 1,242,664. Electric-discharge treatment of polymeric webs. EASTMAN KODAK CO. 8 May, 1969 [13 May, 1968], No. 23555/69. Heading D1L. [Also in Disivions B2, G2 and H1] The surface of a synthetic organic polymeric web, e.g. polyethylene terephthalate film or polyethylene coated paper, is subjected to an a.c. corona discharge and thereafter the irregularities in the electrostatic charge on the surface are smoothed before coating with an aqueous composition, e.g. a photographic layer. As disclosed the web is passed through apparatus comprising a dielectric - coated earthed roll over which the web passes and near which are electrode(s) at, e.g. 50kV (peak to peak), 60Hz. The surface charge so obtained is smoothed by (i) a metal roll at, e.g. 5-50 kV d.c. over which the treated surface of the web is passed and near which are earthed electrodes and/or (ii) an ion generator, through the ion cloud of whch the web is passed. An earthed metal roll may be provided after the d.c. field, the latter suitably being such as to produce a corona discharge. Treatment improves adhesion of the coating. An ion generator comprises a metallic backing electrode 20, spaced electrode wires 22 supported on a frame 24 and a perforated control screen 21 located below the wires. In use, a high voltage a.c. is applied across electrodes 20, 22 while screen 21 is earthed or held at a selected potential. Some of the ions produced pass through the screen onto the charged surface of the web 10 which passes below it.
Patent GB-631993-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H01G5/12
Filed: 1947-08-26
Abstract: 631,993. Variable condensers. CALDWELL, R. H. Aug. 26, 1947, No. 23588. Convention date, Aug. 27, 1946. [Class 37] A condenser comprises a conductive enclosure 10 with a base divided into two semi-cylindrical wells 13, 14 by a partition 15, and conductive rotors 37, 37a fixed to a horizontal shaft 28 of insulating material journalled into the enclosure walls; terminals 43 insulatedly supported on the walls are connected by springy conductive arms 42 to the rotors, which have semi-cylindrical surfaces 38 of slightly less diameter than the wells containing dielectric fluid, e.g. silicone, the arcuate and side surfaces of the rotors being so shaped as to give predetermined capacity characteristics between the enclosure and the rotors. Each rotor has a maximum width slightly less than that of the well and tapers towards one end, the side face tapering in the same direction. The enclosure and rotors are simultaneously cast from the same batch of die-casting material. The enclosure is in two parts, each with a semicylindrical recess for the plastic shaft 28, the parts being held together by end cover-plates 25 and screws 23 and sealed at their contacting edges 19. The spring contact arms 42 have semi-circular ends 44 embracing hubs on the rotors, and are mounted on projections 41 on a plastic bar 40 on the enclosure. Each arm 42 is riveted at 43 to a metal strap 48 spaced from the enclosure wall by an insulating strip 49. A bent spring contact arm 46 pressing on the metal strap 48 is held by a bolt 47 on the bar 40. One end 46b of each arm forms the condenser terminal and the other end is bent over to extend into a recess 45 in the bar 40 to engage the end of the bolt 47, which is adjustable so that the arm 46 and the enclosure form a trimmer condenser. In assembly, a shim, e.g. a thin paper strip, is placed in each well and is removed after the rotors have been fixed in place. Each rotor may be in a separate circuit, the enclosure forming a common electrode, which may have mounting projections 11 with tapped sockets and be grounded.
Patent GB-1514516-A (GB)
Title: Structures with partial damping layers
IPC: B32B7/02
Filed: 1975-05-30
Abstract: 1514516 Laminates REDUC ACOUSTICS AB 30 May 1975 [30 May 1974] 23635/75 Headings B5N and B5P A structural element comprises first and second parts of the element separated from each other by a damping layer comprising viscoelastic material, the viscoelastic material extending discontinuously through the damping layer and joining the first and second parts of the element together, such that shearing is developed in the viscostatic material when said first and second parts vibrate in bending modes, the distance between adjacent spaced apart portions of the viscoleastic material being less than the wavelength of a frequency to be damped. In the embodiment shown in Fig. 2, two parts 1 and 2 of metal, concrete, plaster or wood fibre sheets are separated by a damping layer consisting of distributed lines or spots of viscoelastic material 4. In the embodiment of Figs. 3 and 4 an upper part 5 in the form of a framework structure, e.g. of wood is separated from a lower part 6, e.g. a concrete slab by a damping layer in the form of spots or patches 7 of viscoelastic material. Figs. 5 and 6 show an embodiment, where, in a monolithic structure, near the surface of one part 9 there is embedded the other part in the form of an array of reinforcing member shown as box-like girders 8, a layer of vise#astic material being applied to the members #allow for relative shear.